JPH0611897Y2 - Agricultural tractor - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to improvement of an agricultural tractor.

[Conventional technology]

In the conventional handle, a gate-shaped narrow rod is planted along the front-back direction of the upper plate surface of the fender, and this handle is exclusively provided and used as a handle for a handle when getting on and off the aircraft.

Therefore, the applicant of the present invention devised the above-mentioned handle so that the driver can also use it as an armrest in the driving posture sitting on the seat, and the device is known as Japanese Utility Model Publication No. 57-48660.

[Problems to be solved by the invention]

In the former conventional handle, a narrow handle-only rod is projected onto the fender, and cannot be an armrest when the driver is sitting in the seat, and the driver is in a rear working state. When performing a work while tilting the upper body to the side while looking at the rear and looking backward, the presence of the handle may rather hinder the work posture when the upper arm is supported on the fender.

On the other hand, the latter is improved in that the handle is provided so that the elbow can be worn even in the working posture while looking backward. However, since this part also has a rod that is formed as a handle part where the elbow is received, it has a drawback that it cannot fully perform a stable and comfortable armrest function, and a tractor that can properly support the elbow arm of the driver. It was an incomplete handle.

Therefore, the present invention eliminates the above-mentioned problems by using a handle tool that organically touches the handle part and the armrest part that best fit the shape of the fender of the tractor and solves the work posture of the operator who operates the tractor. Another object of the present invention is to provide a more convenient agricultural tractor that does not cause inconvenience to the height of workers and workers.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention provides a substantially triangular triangular plan view on a fender arranged on one side of the seat on the left and right sides so that the front part is a narrow grip and the rear part is gradually opened. The armrest is provided in a wide armrest, and the armrest is disposed in a predetermined space formed between the left and right side surfaces of the seat and the grip.

[Action]

Therefore, when a tractor equipped with the handle of the present invention is used to get on and off the aircraft, the narrow and easy-to-grip grip portion 31 or armrest portion 32 provided on the front portion of the upper plate surface of the fender is gradually widened. By gripping the part that is formed from the side, the driver can select and grip a long range from the outside of the machine body between the grip 31 and the start end of the armrest 32, and a stable safe and reliable boarding / alighting operation can be performed. Easy to do.

Further, the sensation of the grip width that gradually expands when gripping can be used as an index for confirming the grip position most suitable for the driver.

The elbow arm of the driver who sits on the seat 22 and performs various operations can employ various modes as shown by chain lines a, b and c in FIG. That is, the chain line a state mainly indicates the position of the hand placed on the handle 30 when performing work while looking forward, and the chain line c tilts the upper body to the side,
This is an armrest state when the rearward work state is confirmed and the rearward work is performed, and the position of the hand on these armrest portions 32 is displaced forward and backward depending on the state during each work and the difference in the back height.

The handle 30 according to the configuration of the present invention has a gradually increasing width of the bearing surface on which the elbow arm can be hung, in accordance with the substance used in this way, and is also used as the above-mentioned grip portion. The elbow arm can be stably supported even in the portion of the starting end h that is provided, and the handle 30 can be used as an effective armrest as much as possible.

Also, when performing work such as inspection by leaning back and leaning out to the side, the handle 30 has a shape that gradually spreads rearward, so that the side edge of the fender 4 is firmly fixed as shown by a chain line B. It is convenient because it does not interfere with grasping and placing the hand sufficiently, and the outer edge of the handle 30 is directed outward as it goes rearward, so that the outer edge can be gripped properly and comfortably in a seated state. It is capable of performing safe work.

Further, in addition to the handle on the fender, by disposing an armrest in a predetermined space formed between the handle and the left and right side surfaces of the seat, the operator can perform various operations as described above. The armrest portion of the handle and the armrest disposed inside thereof can be appropriately selected and used according to the work posture and the height, and the usability is further improved as compared with the conventional agricultural tractor.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 6, a vehicle body 1 as a tractor includes an engine section 2 and a steering wheel 3 at a front portion, and a driver's seat located between rear wheels 5 and 5 covered with a fender 4 at a rear portion thereof. 6 is provided, and an arbitrary working machine (not shown) such as a tilling device is provided at the rear portion of the driver's seat 6.

As shown in FIGS. 1 and 5, the shape of the fender 4 is such that a deck board 9 is fixed as a footrest portion of a driver's seat 6 to a machine base 8 including a transmission case for supporting the wheel shafts 7, 7. ,
A standing wall surface 4a rising upward from both sides and a wide or gently curved wide upper plate surface 4b are integrally formed to be continuous. Further, 4c (Fig. 4) is a forward inclined surface obliquely installed in the front downward direction so as to cover the front positions of the rear wheels 5 and 5 from the upper plate surface 4b through the circular arc surface 4d (Fig. 6), A driver's entry / exit space 10 is formed between the front slope 4c and the steering wheel 3 as shown in FIG.

The fender 4 has a guide hole 12 for levers 11 for vertically operating the work machine and setting its position, and a guide hole 14 for a PTO gear shift lever 13 as shown in FIGS. A plate 15 and a mounting surface of an operation tool 16 of electronic control buttons and the like which controls the operation of various automatic controls of the working machine in the rear part, and stands upright from this mounting surface, and covers this with an operation space 17 Armrest 18 bent like
The upper outer part of the armrest operating tool 19 formed integrally with the armrest operating mechanism 19 is fixed to the upper portion of the fender 4 (FIG. 5), and the other stop of the armrest operating tool 19 is fixed. At 21, a cover wall 4e connected to the fender 4 is clamped and fixed to the machine base 8.

The right armrest operating tool 19 is higher than the surface of the guide plate 15 so that when the elbow or arm is placed on the armrest 18, the front levers 11 can be easily grasped and operated in that state. The operation tool 16 which is formed to have a wide width and whose upper part is covered with the armrest tool 18 is provided so as to be lower than the surface of the guide plate 15 and inclined downward toward the inner side, and the operation space 17 is enlarged to operate. It is considered to be easy.

Further, the guide hole 14 of the lever 13 formed in the up-down direction at the forefront of the guide plate 15 is set so that the lever 13 is operated obliquely to the outside of the machine as it is fully lowered in the width direction of the guide plate 15. It is installed diagonally. As a result, when a driver who sits with his / her feet spread out operates the lever 13 forward and downward, the lever 13
Can move in a direction away from your feet and can be operated smoothly in a diagonal direction even though it is located at the side of your feet.The lever 13 can be operated smoothly from neutral to low speed and high speed. There is a feature that can be.

Reference numerals 23 and 24 shown in FIGS. 1, 4, and 6 respectively denote a main gear shift lever and a sub gear shift lever, both of which are provided on the left armrest manipulating implement 19.
Similarly to the right one, the reference numeral 19 attaches and supports the left fender 4 to the machine base 8.

Reference numeral 30 is a grip provided along the front-rear direction on the fender 4, and a grip portion 31 that is easy for the driver to grip as a grip when getting on and off the aircraft, and an elbow when sitting on the seat 22 and performing a driving operation. Alternatively, the armrest 32 that can stably support the arm is provided, and the armrest 32 is installed and configured in the manner described below.

That is, as shown in FIG. 1 and FIG.
Is a plan view shape, the grip portion 31 has a narrow width that can be easily gripped by a hand, and the front end portion thereof has a front inclined surface 4c
The support surface of the armrest portion 32 continuing rearward from this is formed so as to be a wide surface that gradually expands toward the rear, and the rear end extends to the rear of the seat 22. It is provided up to the end of the fender 4.

In addition, from the middle to the rear of the armrest 32, the chain line 30 is shown in FIG.
They may be formed to have the same width as indicated by a.

The attachment configuration of the handle 30 in side view is the third.
In the figure, the leg portion 32a of the narrow grip portion 31 is fixed to the forward inclined surface 4c of the fender 4 by the fastening portion 33. A leg portion 32b integrally formed below the armrest portion 32, which is gradually widened rearward from the grip portion 31, is attached and fixed by a stopper 35 on the upper plate surface 4d.

Incidentally, the side surface of the leg portion 32b may be used to provide the operation tool 16 or the like, and in this case, the operation tool 16 is sufficiently protected because the upper part is covered with the armrest portion 32,
It is convenient because it can be easily manufactured like an assy.

Further, when the armrest 18 is provided directly on the side of the seat 22 as in the embodiment, the driver wears the armrests installed in two stages corresponding to various working postures as described above. Since it can be appropriately selected and used, there is a feature that a comfortable and highly safe driving operation can be performed.

[Effect of device]

As described above, according to the present invention, on the fenders arranged on the outer sides of the left and right sides of the seat, a substantially triangular shape in plan view is formed, and the front part is configured as a narrow grip part and the rear part is gradually widened to a wide width. Since the armrest part is provided in the armrest part, and the armrest part is arranged in a predetermined space formed between the left and right side surfaces of the seat and the grip part, when getting on and off the tractor. In addition to being able to arbitrarily select a gripping tool for easy gripping, when an operator sits on the seat to perform various tasks, not only can the elbow be stably placed on the wide armrest, but also Since the worker can check the work state behind him, even if the elbow moves in a twisted posture, the wide armrest can fully receive the elbow arm, so the work can be checked in a stable posture. Can be more stable than before It is possible to perform the work in attitude.

Furthermore, depending on the working posture and height of the operator who operates the tractor, the armrest portion of the handle and the armrest disposed inside thereof can be appropriately selected and used, and the selection range of the armrest is widened, It has a practical effect that the usability is further improved as compared with the conventional one.

[Brief description of drawings]

FIG. 1 is a plan view of a tractor according to an embodiment of the present invention, and FIG.
FIG. 3 is a plan view of an essential part showing a device part of the present invention, FIG. 3 is a side view showing a mounting state of a handle, and FIGS. 4 and 5 are AA line and BB line of FIG. 1, respectively. A line sectional view, FIG. 6 is an overall perspective view of the tractor. DESCRIPTION OF SYMBOLS 1 ... Aircraft body, 2 ... Engine part, 3 ... Handle, 4 ... Fender, 4a ... Standing wall surface, 4b ... Upper plate surface, 4c ... Front inclined surface, 4d ... Arc surface, 4e ... Cover wall, 5 ... Rear wheel, 6 … Driver's seat, 7… Wheel axle, 8… Machine stand, 9… Deck board, 10… Space for getting on and off, 11
… Levers, 12… Guide holes, 13… PTO gear shift lever, 14…
Guide hole, 15 ... Guide plate, 16 ... Operating tool, 17 ... Operating space,
18 ... Armrest, 19 ... Armrest operation tool, 21 ... Stopper, 22 ... Seat, 23, 24 ... Main shift lever, auxiliary shift lever, 30 ... Grip, 31 ... Grip, 32 ... Armrest.

Claims (1)

[Scope of utility model registration request] 1. A wide armrest portion which has a substantially triangular shape in plan view and which has a narrow grip portion at a front portion and a gradually widening rear portion on a fender which is disposed on the outside of one side surface of a seat. An agricultural tractor, characterized in that an armrest is arranged in a predetermined space formed between the left and right side surfaces of the seat and the handle, while the handle is provided.